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2017年10月27日SAT官方每日一题---数学选择.

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  下面是2012年10月27日的SAT官方每日一题的内容,是关于数学方面的,题型是选择。SAT官方每日一题是collegeboard每天都会发布的题目,关于SAT考试的三个部分的各个题型。下面我们就一起来看一下这个SAT官方每日一题吧。

  SAT官方每日一题之数学---选择:

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  Mathematics > Standard Multiple Choice

  Read the following SAT test question and then click on a button to select your answer.

  Ifand, thenexceedsby

  (A)

  (B)

  (C)

  (D)

  (E)

  The correct answer is

  Explanation“exceeds” is interpreted mathematically as the value ofand is evaluated as follows: 

  下面为大家提供一些和这些SAT官方每日一题相似的题目,供大家练习:

  If , the value of can be which of the following?

 .   .   .

  Answer Choices

  (A) only

  (B) only

  (C) only

  (D) and only

  (E) , , and

  The correct answer is D

  Explanation

  Roman Numeral Answer Format

  Roman Numeral : Can the value of be ?

  You could test this answer by substituting for in the equation and seeing whether the result is true. But you can also reason this question out without substituting numbers:

  If , then is a positive number, because any nonzero number squared is positive.

  If , then is negative.

  So is negative and is positive.

  Therore, cannot be .

  Mark Roman numeral with an “F” for false.

  Roman Numeral : Can the value of be ?

  This is a very easy substitution to make:  

  Roman numeral is true, so mark it with a “T” for true.

  Roman Numeral : Can the value of be ?

  Substitute for :

  If , then .Also, .

  Roman numeral is true, so mark it with a “T” for true.

  Check the Answers:

  You now know whether each of the Roman numeral statements is true or false:is false.is true.is true.

  Find the choice that says only and are true

  以上就是关于2012年10月27日SAT官方每日一题中数学部分的详细内容,包括了题目和选项以及答案,后面附有一道相关的练习题。大家可以在备考SAT的过程中关注SAT每日一题的内容,这样就可以更好有不间断的练习,也就能在日积月累的过程中得到提高。

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